Use a Change Event Macro. Say we are interested in detecting changes to cell
B9:

Private Sub Worksheet_Change(ByVal Target As Range)
Set t = Target
Set b = Range("B9")
If Intersect(t, b) Is Nothing Then Exit Sub
MsgBox ("B9 has changed")
End Sub


Because it is worksheet code, it is very easy to install and use:

1. right-click the tab name near the bottom of the window
2. select View Code - this brings up a VBE window
3. paste the stuff in and close the VBE window

If you save the workbook, the macro will be saved with it.

To remove the macro:

1. bring up the VBE windows as above
2. clear the code out
3. close the VBE window

To learn more about macros in general, see:

http://www.mvps.org/dmcritchie/excel/getstarted.htm

To learn more about Event Macros (worksheet code), see:

http://www.mvps.org/dmcritchie/excel/event.htm



--
Gary''s Student - gsnu200840


"Rich" wrote:

I have a pulldown list of values. I need to run a macro whenever the value
of the cell with the pulldown changes.

For example, If the cell is changed from "Master" to "Balance", I need a
macro to run to unhide certain sheets and hide others. The macro (vba code)
is not the problem - it's just having excel execute the code if the cell
value changes.

Any help in pointing me in the right direction is appreciated!!